Cooperative Extension prohibits discrimination and harassment regardless of age, color, disability, family and marital status, gender identity, national origin, political beliefs, race, religion, sex (including pregnancy), sexual orientation and veteran status. Flickriver - view images as a river of photos and more. Be sure to obtain current information about usage regulations and examine a current product label before applying any chemical. 037 Harlequin Bug (Tectocoris diophthalmus) - a photo on Flickriver. Individuals who use agricultural chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. A&T State University nor discrimination against similar products or services not mentioned. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsement by NC State University or N.C. Recommendations for the use of agricultural chemicals are included in this publication as a convenience to the reader. Two to four generations occur each year in North Carolina. Nymphs feed for 6 to 8 weeks and develop through 5 stages before becoming adults. Eggs hatch in 4 to 5 days as the weather becomes warmer. In early spring, eggs hatch in about 20 days. Each female may deposit up to 155 eggs or so. Adults emerge early in spring and after 2 weeks, females begin depositing eggs on the undersides of leaves. Harlequin bugs overwinter as adults by hibernating among plant debris. Older nymphs resemble adults but lack wings. Eggs are laid in double-row clusters of 10 to 13 on the leaves of plants in the mustard family. The top has a black circle or crescent shaped, and a tiny black spot occurs between the side bands. Females lay tiny, barrel-shaped eggs that are pale with two black bands. ![]() They are shield-shaped or oval in top view and 1/ 4 to 3/ 8 inch long. ![]() ![]() Harlequin bugs, Murgantia histrionica, are robust and black with vivid red, orange, or yellow markings. Description and Biology Skip to Description and Biology
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